OK, after much grinding of teeth I've got two pairs of Scarpa boots coming, the Triolet GTX Pro and the Charmoz.
I realise they're similar in many ways, with one carrying a bit more leather than the other.
The question I now pose is, which would be better for Mont Blanc and The Matterhorn in summer?

Assuming you're doing the regular routes on both mountains and are not going to be doing anything steeper and more technical than these 2 routes, then the Charmoz is probably your best bet. Lighter, slightly softer, easier to break in.

On my second pair of Triolet. Break-in was non-issue, did 17 miles and 5K vert on the first day with my first pair. I personally like the added durability of the full leather lower. Pretty sure either will treat you well.

Just received the Triolet's and for those saying they're wider with a roomier toebox, that's correct.
In otherwords, I think I've found my boot.
I ordered the Charmoz as well, so I do believe I'm going to be a winner all ways.